They just cant leave well enough alone. In the company meeting they said "Lets confuse the public some more by hiding the Nav Icon!" One more thing they shouldn't have messed with is the Latitude, It's going away or gone now I know that G+ is now doing it but I don't like Google+ another user unfriendly app. I will stop my rant now.

edit
Turn off updating in the Google Play, guess what They didn't get my Icon!

LOL! I was ready to smack the piss out of my daughter.I thought she erased it??I'm just kidding!!!Google maps don't have a voice while driving now??It sucks,I liked it before!!!Is there one that is just as good??

LOL! I was ready to smack the piss out of my daughter.I thought she erased it??I'm just kidding!!!Google maps don't have a voice while driving now??It sucks,I liked it before!!!Is there one that is just as good??

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You either uninstall the update and make sure the PlayStore auto update is off to get the old functionality back or learn to properly use Maps. After you find where you want to go in maps you click the car at the bottom of the screen, select which route you want then click the start (blue arrow) and lo and behold there be turn by turn voices.